PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-01:57:50
G08     319.7          12.0                7.2 +/-    3.69      19.2 +/-    3.69  0.140 / 0.380
G10     303.3          53.3               11.4 +/-    0.79      13.9 +/-    0.79  0.120 / 0.460
G14     211.4          17.9               14.0 +/-    2.14      32.5 +/-    2.14  0.050 / 0.040
G15     45.8           26.2                9.7 +/-    0.67      18.5 +/-    0.67  0.040 / 0.060
G18     5.6            65.3               11.9 +/-    0.67      13.0 +/-    0.67  0.060 / 0.120
G20     75.2           13.8                9.6 +/-    1.49      24.5 +/-    1.49  0.070 / 0.120
G21     109.4          70.8               13.5 +/-    0.64      14.2 +/-    0.64  0.030 / 0.040
G24     93.9           28.2               14.4 +/-    1.07      26.1 +/-    1.07  0.030 / 0.040
G27     293.2          36.8               12.1 +/-    1.18      18.6 +/-    1.18  0.060 / 0.070
G32     213.2          35.6               15.5 +/-    0.90      24.3 +/-    0.90  0.070 / 0.070